CN112372555A

CN112372555A - Clamp for assembling miniature motor meson

Info

Publication number: CN112372555A
Application number: CN202011067322.XA
Authority: CN
Inventors: 罗军; 项庆生
Original assignee: Dongfeng Boze Automobile System Co ltd
Current assignee: Dongfeng Boze Automobile System Co ltd
Priority date: 2020-10-06
Filing date: 2020-10-06
Publication date: 2021-02-19
Anticipated expiration: 2040-10-06
Also published as: CN112372555B

Abstract

The invention relates to the technical field of motor meson assembly, in particular to a clamp for assembling a micro motor meson. The clamp for assembling the micro motor meson comprises a pressure lever, a pressure head and a plurality of elastic sheets; a through groove for positioning the armature shaft is formed in the compression bar; the pressure head is sleeved at the end part of the pressure rod, and a cavity for accommodating the meson is arranged in the pressure head; the elastic sheets are uniformly distributed along the circumferential direction of the pressure head port; the elastic sheet is in a strip shape. The invention has the beneficial effects that: the clamp for assembling the micro motor meson forms a clamping area to clamp the meson through the plurality of first bending parts, so that the situation of deviation in the installation process of the meson can be effectively avoided; in the process that the meson is installed to the armature shaft assigned position, the armature shaft can relatively slide along the through groove, certain auxiliary positioning effect is played to the meson installation, and meson installation efficiency is greatly improved.

Description

Clamp for assembling miniature motor meson

Technical Field

The invention relates to the technical field of motor meson assembly, in particular to a clamp for assembling a micro motor meson.

Background

In a permanent magnet brush motor, an intermediate member is additionally arranged at the end part of an electric drive shaft, bearing oil which possibly occurs is prevented from permeating into a groove of a commutator through the intermediate member, carbon powder is attached to the surface of the oil once the oil permeates into the groove in the commutator, the situation that short circuit exists between a conductive part inside the motor and an equipment protection interface is easy to occur, and the armature shaft is seriously short-circuited and burns up the whole motor.

In the production process of the motor, when the meson is pressed into the motor electric driving shaft, a manual press-fitting mode is generally adopted, and the meson is small, so that the meson is easy to slide in the process of being held by a worker, the meson is difficult to accurately press into the meson along the armature shaft, and the meson after being pressed and fitted manually is easy to loose from the armature shaft, so that the meson is easy to fall off.

Disclosure of Invention

Aiming at the technical problems in the prior art, the invention provides a clamp for assembling a miniature motor meson to solve the problem of low efficiency of the meson installation process.

The technical scheme for solving the technical problems is as follows: a clamp for assembling a micro motor meson comprises a pressure lever, a pressure head and a plurality of elastic sheets;

a through groove for positioning the armature shaft is formed in the compression bar;

the pressure head is sleeved at the end part of the pressure rod, and a cavity for accommodating the meson is arranged in the pressure head;

the elastic sheets are uniformly distributed along the circumferential direction of the pressure head port; the elastic sheet is in a strip shape, one end of the elastic sheet is connected with the pressure head, and the other end of the elastic sheet is provided with a first bending part which is inwards sunken along the end face; the plurality of first bends form a meson clamping area.

The invention has the beneficial effects that: the clamp for assembling the micro motor meson forms a clamping area to clamp the meson through the plurality of first bending parts, so that the situation of deviation in the installation process of the meson can be effectively avoided; in the process that the meson is installed at the appointed position of the armature shaft, the armature shaft can relatively slide along the through groove, and a certain auxiliary positioning effect is achieved for the installation of the meson; after the meson is installed in place, the whole fixture can be pulled out, and the meson installation efficiency is greatly improved.

On the basis of the technical scheme, the invention can be further improved as follows.

Furthermore, the middle part of the elastic sheet is also provided with a second bending part with an inward convex end surface, and the second bending part can be contacted with the pressing rod to adjust the opening degree of the first bending part.

Further, the pressure head is in threaded connection with the pressure rod so as to adjust the position of the pressure head; and a locking nut matched with the pressure head is also arranged outside the pressure rod so as to fix the position of the pressure head.

Furthermore, one side of the elastic sheet close to the first bending part is in an open shape.

Further, the convex points of the second bending parts are all located on a circle with a diameter smaller than that of the pressure rod.

Furthermore, each elastic sheet is matched with an embedded groove formed in the pressure head.

Furthermore, the elastic sheet is made of elastic materials.

The beneficial effect who adopts above-mentioned further scheme is that, through the relative position of adjusting pressure head and depression bar, the second flexion can produce certain axial holding power to whole shell fragment with the in-process of depression bar contact with the separation, can be according to the aperture of the first flexion of size adjustment of meson specification for the application range of this anchor clamps is more extensive.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an exploded view of the structure of the present invention;

FIG. 3 is a schematic cross-sectional view of the present invention;

FIG. 4 is a schematic structural view of a spring plate according to the present invention;

FIG. 5 is a schematic view of another embodiment of the present invention;

FIG. 6 is a schematic diagram of an overall structure of a press-fitting medium in the embodiment of the present invention;

fig. 7 is a sectional view showing the overall structure of the press-fitting medium in the embodiment of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. the pressing rod comprises a pressing rod body 101, a through groove, 2, a pressing head, 2a, an embedding groove, 3, an elastic sheet, 3a, a first bending portion, 3b, a second bending portion, 4, a locking nut, 5, a motor, 5a, an armature shaft, 6 and an meson.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

The invention also provides the following preferred embodiments

As shown in fig. 1-3, a fixture for assembling a micro-motor includes a pressing rod 1, a pressing head 2 and a spring plate 3.

The pressing rod 1 is internally provided with a through groove 101 for positioning the armature shaft.

The pressure head 2 is a round pipe fitting matched with the pressure rod 1, the pressure head 2 is sleeved at the end part of the pressure rod 1, and a cavity for accommodating the meson is arranged inside the pressure head.

The number of the elastic sheets 3 is three, and the three elastic sheets 3 are uniformly distributed along the circumferential direction of the port of the pressure head 2; each elastic sheet 3 is matched with an embedded groove 2a formed in the pressure head 2; the elastic sheet 3 is in a strip shape, one end of the elastic sheet 3 is connected with the pressure head 2 through a screw, and the other end of the elastic sheet is provided with a first bending part 3a which is inwards sunken along the end face; the three first bending parts 3a form a meson clamping area, and the elastic sheet 3 can form certain clamping force on the meson placed in the pressure head 2 along the caulking groove 2 a.

After the meson is placed in the cavity of the pressure head 2, a clamping area clamping meson is formed by the plurality of first bending parts 3a, so that the situation of offset in the installation process of the meson can be effectively avoided; in the process that the meson is installed at the appointed position of the armature shaft, the armature shaft can relatively slide along the through groove 101, and a certain auxiliary positioning effect is achieved for the installation of the meson; after the meson is installed in place, the whole fixture can be pulled out, and the meson installation efficiency is greatly improved.

In this embodiment, as shown in fig. 4, the elastic sheet 3 is made of an elastic material, and in this embodiment, the elastic sheet 3 is made of 65Mn spring steel, and the surface of the elastic sheet 3 is subjected to nitriding treatment, so that the corrosion resistance and the wear resistance are improved. One side of the elastic sheet 3 close to the first bending part 3a is open so as to press the meson.

In this embodiment, as shown in fig. 3, 4 and 5, the middle of the spring plate 3 is further provided with a second curved portion 3b with an inwardly protruding end face, and protruding points of the three second curved portions 3b are all located on a circle with a diameter smaller than that of the pressure rod 1; when the pressure head 2 axially deviates relative to the pressure rod 1, once the pressure rod 1 contacts the second bending part 3b, an axially outward supporting force is formed, so that the whole elastic sheet 3 is outwards bent, the opening degree of the first bending part 3a is adjusted according to the specification size of the meson, and the applicability of the clamp is improved.

In this embodiment, the pressure head 2 is in threaded connection with the pressure rod 1, and the pressure head 2 can axially move along the pressure rod 1 by rotating so as to adjust the position of the pressure head 2; the outside of depression bar 1 still is provided with the lock nut 4 with pressure head 2 looks adaptation, and 2 posterous position control of pressure head is accomplished, fixes in order to the position of pressure head 2 through screwing up lock nut 4, prescribes a limit to the aperture of first flexion 3a promptly.

The working process of the invention is as follows:

(1) regulating the opening degree

Firstly, the whole clamp is arranged on a press, the specification and the size of an meson to be arranged are determined, and a pressure head 2 is screwed, so that the convex point of a second bending part 3b moves along the direction that a pressure rod 1 approaches or leaves; if the opening degree of the first bend 3a is too large, the convex point of the second bend 3b is adjusted in a direction away from the pressing rod 1, so that the three single sheets 3 are tightened inward; if the opening degree of the first bent portion 3a is excessively small, the projection point of the second bent portion 3b is adjusted in the direction closer to the compression bar 1 so that the three single pieces 3 are expanded inward.

When the opening degree of each first bending portion 3a is matched with the size of the medium, the lock nut 4 is screwed to fix the position of the whole ram 2.

(2) Press mounting of meson

Firstly, an meson to be installed is pressed inwards along the open position of the elastic sheet 3, after the meson is pressed into the clamping area formed by the three first bending parts 3a, the elastic sheet 3 can form a certain clamping force on the meson placed in the pressure head 2 along the caulking groove 2a, so that the meson can be stably installed in the cavity of the pressure head 2.

Starting a press to push a pressure rod 1 to move downwards, enabling a motor armature shaft to penetrate through an meson and extend into a through groove of the pressure rod 1, enabling the meson and the motor armature shaft to be in interference fit to generate a certain binding force until the meson is installed at a specified position, and enabling the installation process to be as shown in fig. 6 and 7; the press drives the press rod 1 to move upwards, at the moment, the clamping force of the elastic sheet 3 on the meson is not enough to continuously clamp the meson until the meson is separated from the elastic sheet 3, and then the installation of the meson is completed.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A clamp for assembling a micro motor meson is characterized by comprising a pressure lever (1), a pressure head (2) and a plurality of elastic sheets (3);

a through groove (101) for positioning the armature shaft is formed in the compression bar (1);

the pressure head (2) is sleeved at the end part of the pressure rod (1), and a cavity for accommodating the meson is arranged in the pressure head;

the elastic sheets (3) are uniformly distributed along the circumferential direction of the port of the pressure head (2); the elastic sheet (3) is in a long strip shape, one end of the elastic sheet (3) is connected with the pressure head (2), and the other end of the elastic sheet is provided with a first bending part (3a) which is sunken inwards along the end surface; the plurality of first bent portions (3a) form a meson-clamping area.

2. The clamp for assembling the micro-motor meson according to claim 1, wherein the middle of the spring plate (3) is further provided with a second bending part (3b) with an inward convex end surface, and the second bending part (3b) can be used for adjusting the opening degree of the first bending part (3a) by contacting the pressure rod (1).

3. The jig for assembling a micro-motor meson according to claim 2, wherein the pressing head (2) is screw-coupled with the pressing rod (1) to adjust the position of the pressing head (2); the outside of the pressure lever (1) is also provided with a locking nut (4) matched with the pressure head (2) to fix the position of the pressure head.

4. The jig for assembling a micro-motor meson according to claim 2, wherein the spring (3) has an open side near the first bending portion (3 a).

5. The jig for assembling micro-motors and media as claimed in claim 2, wherein the plurality of the protrusions of the second bending portion (3b) are located on a circle having a diameter smaller than that of the pressing rod (1).

6. The jig for assembling a micro-motor medium according to claim 2, wherein each of the resilient pieces (3) is fitted with a caulking groove (2a) formed in the ram (2).

7. The jig for assembling a micro-motor meson according to claim 1, wherein the resilient piece (3) is made of an elastic material.